add functionality for toggling sidebar
refactor code for getting holos data
open photo detail as modal window
refactor ui-views
reconfigured bootstrap grid layout
add update url function for modal
add bounds element to leaflet map
changed loading order for js files
added interaction between markers and photos
changed app layout
edits to detail, upload and about pages
fixed footer layout
fixes to slider
updates to slideshow
bugfix for image gallery mouseover event
fixed bug in highlighting marker cluster on image gallery mouseover event
Syncing dev with master